| CoFe水滑石的合成及其催化活性研究 |
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| 引用本文： | 陈慧琴,詹正坤.CoFe水滑石的合成及其催化活性研究[J].韶关学院学报,2007,28(12):55-57. |
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| 作者姓名： | 陈慧琴 詹正坤 |
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| 作者单位： | 1. 韶关学院,化学与环境工程学院,广东,韶关,512005
2. 华中师范大学,化学学院,湖北,武汉,430079 |
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| 摘 要： | 以Co（NO3）2·6（H2O）和Fe（NO3）3·9（H2O）为原料,选取NaOH和Na2CO3为沉淀剂,采用低过饱和共沉淀法合成了CoFe系列的碳酸根型水滑石,用XRD、IR和TG-DTA等分析手段对样品进行测试和表征.经焙烧后,发现其复合氧化物对乙醇催化脱水、脱氢反应有一定的活性.
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| 关 键 词： | 水滑石 共沉淀合成 复合氧化物 催化活性 |
| 文章编号： | 1007-5348(2007)12-0055-03 |
| 修稿时间： | 2007年6月16日 |
Synthesis and catalytic activity of CoFe hydrotalcite |
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| CHEN Hui-qin,ZHAN Zheng-kun.Synthesis and catalytic activity of CoFe hydrotalcite[J].Journal of Shaoguan University(Social Science Edition),2007,28(12):55-57. |
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| Authors: | CHEN Hui-qin ZHAN Zheng-kun |
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| Institution: | CHEN Hui - qin, ZHAN Zheng- kun (1. Institute of Chemistry and Environmental Engineering, Shaoguan University, Shaoguan 512005, Guangdong,China; 2. Institute of Chemistry, Central China Normal University, Wuhan 430079 , Hubei, China) |
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| Abstract: | A series of CoFe hydrotalcite were synthesized by combining a mixed solution of Co （ NO3 ）2 · 6 （ H2O ） and Fe（NO3 ）3·9（H2O） with a second solution containing NaOH and Na2CO3. Their structures were characterized by XRD, IR and TG - DTA. The results showed that the hydrotalcites with Co/Fe molar ratios of 2 to 4 have the nice crystal form and high purity. After calcined, hydrotalcites are converted into composite oxides. It is found that the composite oxides has activity and selectivity for catalyzing the dehydrogenation and dehydration of ethanol. |
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| Keywords: | hydrotalcite synthesise by coprecipitation composite oxides catalytic activities |
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